Hi, I'm using Windows 7 Ultimate on a Lenovo computer, 8 mb RAM, Q8200 CPU. Recently I started getting notifications that my backup failed because the system cannot find the file specified, and the above error code. I'm not specifying any files, and I've reset backup to its default settings, all to no avail. I'm backing up to an external USB hard drive. In fact I bought a new one because I thought the old one was too small. Same problem. I've already looked at the MS knowledgebase and downloaded and installed the update that they recommend there, to no avail. Any other ideas?